Joint structure for waterproof sheets

Abstract

A joint sealing structure for waterproof sheets for a cool roof includes a first waterproof sheet and a second waterproof sheet installed in such a manner that their edges are spaced apart from each other with a predetermined gap in-between and a polymer-filled portion that fills the gap. The polymer-filled portion is formed by filling the gap with a liquid polymer that has fire-retardant property. The waterproof sheet includes a waterproof sheet layer and a top reinforce layer placed on one side of the waterproof layer. The top reinforce layer is impregnated in the liquid polymer and then dried, and is treated to have a light color. The top reinforce layer is a fiberglass cloth having a plurality of glass fibers woven with one another. The polymer is impregnated onto the fiberglass cloth in such a thickness so that there are no glass fibers exposed out of the polymer.

1 . A joint sealing structure for waterproof sheets for a cool roof, wherein the joint sealing structure is formed above a slab layer, comprising: 
 a) a first structure comprising a waterproof sheet;    b) a second structure that is adjacent to the first structure with a predetermined gap in-between;    and    c) a polymer-filled portion that fills the gap; wherein the polymer-filled portion is formed by filling the gap with a liquid polymer that has fire-retardant property.    
   
   
       2 . The joint sealing structure according to  claim 1 , wherein the waterproof sheet comprises: 
 a) a waterproof sheet layer; and    b) a top reinforce layer placed on one side of the waterproof layer;    wherein the top reinforce layer is impregnated in the liquid polymer and then dried, and is treated to have a light color.    
   
   
       3 . The joint sealing structure according to  claim 2 , wherein the waterproof sheet layer comprises an asphalt sheet.  
   
   
       4 . The joint sealing structure according to  claim 2 , wherein the top reinforce layer comprises a fiberglass cloth.  
   
   
       5 . The joint sealing structure according to  claim 4 , wherein the fiberglass cloth comprises a plurality of glass fibers woven with one another, and wherein the polymer fill gaps between the woven fibers.  
   
   
       6 . The joint sealing structure according to  claim 5 , wherein the polymer is impregnated onto the fiberglass cloth in such a thickness so that there are no glass fibers exposed out of the polymer.  
   
   
       7 . The joint sealing structure according to  claim 5 , wherein each of the waterproof sheets is made by forming the fiberglass cloth, and then coating asphalt on the fiberglass cloth with a constant thickness.  
   
   
       8 . The joint sealing structure according to  claim 2 , each of the first and second waterproof sheets further comprises a base layer placed on the other side of the waterproof layer.  
   
   
       9 . The joint sealing structure according to  claim 8 , wherein the base layer comprises a fiber non-woven fabric.  
   
   
       10 . The joint sealing structure according to  claim 8 , wherein the base layer comprises a fine sand layer.  
   
   
       11 . The joint sealing structure according to  claim 8 , wherein the base layer comprises a polyester film.  
   
   
       12 . The joint sealing structure according to  claim 1 , wherein the liquid polymer is selected from the group consisting of acrylic resin, epoxy resin, polyurea resin, and polyurethane.  
   
   
       13 . The joint sealing structure according to  claim 1 , wherein the width of the gap between the first and second waterproof sheets is in a range from about 0.7 cm to about 1.5 cm.  
   
   
       14 . The joint sealing structure according to  claim 1 , further comprising a fiberglass tape installed above the polymer filled portion longitudinally along the gap and covering the gap.  
   
   
       15 . The joint sealing structure according to  claim 14 , wherein the fiberglass tape is impregnated in a liquid polymer that has fire-retardant property and the dried.  
   
   
       16 . The joint sealing structure according to  claim 14 , wherein the fiberglass tape is treated to have a light color.  
   
   
       17 . The joint sealing structure according to  claim 14 , wherein the width of the fiberglass tape is in a range from about 10 cm to 15 cm.  
   
   
       18 . The joint sealing structure according to  claim 1 , wherein the second structure comprises the waterproof sheet.  
   
   
       19 . The joint sealing structure according to  claim 1 , wherein the second structure comprises a wall that is extended from the slab layer.  
   
   
       20 . The joint sealing structure according to  claim 1 , wherein the second structure comprises a drain that is installed on the slab layer.  
   
   
       21 . The joint sealing structure according to  claim 1 , wherein the second structure comprises a pipe that protrudes from the slab layer.  
   
   
       22 . The joint sealing structure according to  claim 1 , further comprising an air vent between the waterproof sheet and the slab layer.  
   
   
       23 . The joint sealing structure according to  claim 1 , wherein the polymer-filled portion comprises a convex portion that covers the first waterproof sheet and the second waterproof sheet adjacent the gap.  
   
   
       24 . A joint sealing structure for waterproof sheets for a cool roof, comprising: 
 a) a first waterproof sheet and a second waterproof sheet installed in such a manner that their edges are adjacent; and    b) a fiberglass tape installed above the area that the edges of the first waterproof sheet and the second waterproof sheets are adjacently positioned;    wherein each of the first and second waterproof sheets comprises a waterproof sheet layer, and a top reinforce layer placed on one side of the waterproof layer,    wherein the top reinforce layer is impregnated in the liquid polymer and then dried, and is treated to have a light color,    wherein the fiberglass tape is impregnated in a liquid polymer that has fire-retardant property and the dried, and is treated to have a light color.